Marine organisms modify the distribution of radioisotopes in the oceanic ecosystem. Various vital processes of plants and animals concentrate elements. The distributions of the biota are often independent of their watery environment; they may actively migrate vertically or horizontally or may remain in place while the water moves past them. In the case of plankton, the concentrating organisms p...

this study reports the concentrations of important tracers of the marine environment, 210po and210pb, in different matrices from field samples collected at central adriatic sea (italy), a non-contaminatedmarine ecosystem. 210po concentration appears to decrease with increasing distance from the coast and asignificant difference in 210po concentrations in seawater samples at two different depths...

Almost all ICES member countries have policies that address the impacts of human activities on marine ecosystems. These policies may explicitly be framed as an implementation of an ecosystem approach. An important example is the Marine Strategy Framework Directive (MSFD) of the European Union (EC, 2008), which is a comprehensive framework for achieving good environmental status (GES) for Europe...

l glutaminase, a therapeutic enzyme obtained from marine actinomycetes gains importance because of their adaptability to varied environmental factors. an experimental study was carried out to isolate the l glutaminase producing actinomycetes from the marine sediment of thoothukudi. marine sediment sample was collected from six different locations of the thoothukudi coastal ecosystem, enriched w...

The California Current Large Marine Ecosystem (CCLME), a temperate marine region dominated by episodic upwelling, is predicted to experience rapid environmental change in the future due to ocean acidification. The aragonite saturation state within the California Current System is predicted to decrease in the future with near-permanent undersaturation conditions expected by the year 2050. Thus, ...

Chronic undersampling of the marine environment, including both biological and physical components, has been and remains a major block to understanding how marine ecosystems function and how they respond to changes, whether natural or anthropogenic. Consequently, data-based models that accurately predict local variations in the abundance of plant and animal life in the sea are rare or do not ex...

Article history: This paper discusses largeReceived 1 May 2007 Received in revised form 27 January 2008 Accepted 2 December 2008 Available online 20 February 2009

In 2001, the Canadian Councils of Resource Ministers (CCRM) named biodiversity reporting as a priority. As a result, the Biodiversity Outcomes Framework was developed to identify and link current and future priorities related to sustaining Canadian biodiversity, to engage Canadians on the planning and implementation of these priorities, and to report on progress. In 2006, the CCRM identified th...

1 Department of Biology, University of Bergen, Bergen, Norway, 2 Centre National de la Recherche Scientifique, UMR 7144, Station Biologique, Sorbonne Universités, UPMC Université Paris 06, Roscoff, France, 3 Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT-The Arctic University of Norway, Tromsø, Norway, 4 Hjort Centre for Marine Ecosystem Dynamics, ...